Dennis Nielson, MD
Dennis Nielson, MD holds NPI 1801850706, with a primary taxonomy of pediatric pulmonology physician and a practice location in San Francisco, CA. The number was issued on April 17, 2006 and the NPPES record was last updated on July 13, 2026. The record lists 2 taxonomy codes.
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Pediatric Pulmonology Physician Primary | 2080P0214X | G35081 (CA) |
| Pediatrics Physician | 208000000X | G35081 (CA) |
Practice location
Local context
Active NPPES records list 14 providers with pediatric pulmonology physician as the primary taxonomy within 25 miles of this practice location's ZIP code, 9 of them within 10 miles.
The same primary taxonomy is listed by 156 in California and 1,755 nationwide.
These are counts from NPPES records, not a ranking or recommendation. Distances are measured between ZIP code centers, not street addresses.
Record history
- Name on record
- Dr. Dennis W Nielson
- Status
- Active
- NPI issued
- Last updated in NPPES
Is this your record? Updates are made through NPPES, the official National Plan and Provider Enumeration System.
NPPES data as of · Source: CMS NPPES
Building software? Fetch this NPI programmatically with the NPILayer Provider API.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://api.npilayer.com/v1/providers/1801850706"